Overshoe upper



FIG. 1 is a top and right side perspective view of an overshoe upper showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top and right side perspective view with the closure flap closed;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a right side elevational view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a front elevational view thereof; and,

FIG. 11 is a rear elevational view thereof.

The broken line showing of a sole in FIGS. 1-11 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an overshoe upper, as shown and described. 